- -

Influence of limestone filler and viscosity-modifying admixture on the porous structure of self-compacting concrete

RiuNet: Institutional repository of the Polithecnic University of Valencia

Share/Send to

Cited by

Statistics

Influence of limestone filler and viscosity-modifying admixture on the porous structure of self-compacting concrete

Show simple item record

Files in this item

dc.contributor.author Valcuende Payá, Manuel Octavio es_ES
dc.contributor.author Parra, C. es_ES
dc.contributor.author Marco Serrano, Empar es_ES
dc.contributor.author Garrido, A. es_ES
dc.contributor.author Martínez, E. es_ES
dc.contributor.author Canovés Valiente, Jacinto José es_ES
dc.date.accessioned 2014-10-27T16:45:21Z
dc.date.available 2014-10-27T16:45:21Z
dc.date.issued 2012-03
dc.identifier.issn 0950-0618
dc.identifier.uri http://hdl.handle.net/10251/43615
dc.description.abstract The objective of this experimental work is to study porosity in self-compacting concrete (SCC) made without adding limestone filler, comparing the results with other SCC and with normally-vibrated concrete (NVC). Several types of concrete were made, keeping the w/c ratio constant. The results show that the air content in SCC depends on the flowability and viscosity of the material, putting a forward an expression to estimate the air content in accordance with these two parameters. SCC shows a finer and more tortuous porous structure than NVC, leading to lower permeability to water under pressure. Nevertheless, in the absence of pressure, when water penetrates by capillary action, the results obtained from the different types of concrete were very similar, with differences below 3.5%. This is due to the fact that the content of pores over 0.5 μm is practically the same in SCC and NVC, but for smaller pore sizes, which are therefore only accessed when water under pressure is applied, the differences in porosity between the different samples is more pronounced. On the other hand, it was observed that the use of more fluid mixtures permitted more impermeable concrete to be obtained. The use of viscosity-modifying admixture on SCC as a replacement for limestone filler does not affect the total volume of pores, but generates a slightly more coarse porous microstructure, thereby leading to concretes in which water penetration depth under pressure is a little higher (around 4 mm). es_ES
dc.description.sponsorship The authors of this paper would like to thank the Consejeria de Universidades, Empresa e Innovacion de la Comunidad Autonoma of the Region of Murcia for funding the SUE-ICI 07/02-0013 Project, in which the Region of Murcia Construction Technology Centre (CTCON) and the companies HOLCIM and SIKA Spain also took part. Additionally, the laboratory technicians R. Calabuig and J. Martinez are also thanked for their disinterested collaboration in the tests. en_EN
dc.language Inglés es_ES
dc.publisher Elsevier es_ES
dc.relation Consejería de Universidades, Empresa e Innovación de la Comunidad Autónoma of the Region of Murcia [Project SUE-ICI 07/02-0013] es_ES
dc.relation.ispartof Construction and Building Materials es_ES
dc.rights Reserva de todos los derechos es_ES
dc.subject Absorption es_ES
dc.subject Water penetration depth es_ES
dc.subject Pore size distribution es_ES
dc.subject Porosity es_ES
dc.subject Self-compacting concrete es_ES
dc.subject Fluid mixtures es_ES
dc.subject Limestone filler es_ES
dc.subject.classification CONSTRUCCIONES ARQUITECTONICAS es_ES
dc.title Influence of limestone filler and viscosity-modifying admixture on the porous structure of self-compacting concrete es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1016/j.conbuildmat.2011.07.029
dc.rights.accessRights Cerrado es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Construcciones Arquitectónicas - Departament de Construccions Arquitectòniques es_ES
dc.description.bibliographicCitation Valcuende Payá, MO.; Parra, C.; Marco Serrano, E.; Garrido, A.; Martínez, E.; Canovés Valiente, JJ. (2012). Influence of limestone filler and viscosity-modifying admixture on the porous structure of self-compacting concrete. Construction and Building Materials. 28(1):122-128. doi:10.1016/j.conbuildmat.2011.07.029 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion http://dx.doi.org/10.1016/j.conbuildmat.2011.07.029 es_ES
dc.description.upvformatpinicio 122 es_ES
dc.description.upvformatpfin 128 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 28 es_ES
dc.description.issue 1 es_ES
dc.relation.senia 201895


This item appears in the following Collection(s)

Show simple item record